ref 1

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --allow-non-conformance --ref 1 -o "{o}" -
14 11606.3 kbps 0.9996271432444092 98.7919292060336 15.14 fps
18 6654.11 kbps 0.9993177887411482 98.55042741839651 18.33 fps
22 4199.07 kbps 0.9987395619694973 98.09496778300722 20.9 fps
26 2750.13 kbps 0.9975713812860256 97.14030707762939 23.31 fps

ref 2

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --allow-non-conformance --ref 2 -o "{o}" -
14 11470.33 kbps 0.9996306467823096 98.7938088533171 12.94 fps
18 6610.72 kbps 0.9993218344249601 98.5567912825643 15.64 fps
22 4161.36 kbps 0.9987449725781941 98.10633988202022 17.8 fps
26 2729.87 kbps 0.9975808665415363 97.1548659908462 19.85 fps

ref 3

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --allow-non-conformance --ref 3 -o "{o}" -
14 11434.87 kbps 0.9996310697919779 98.79346888413428 11.6 fps
18 6575.18 kbps 0.9993222972202982 98.55711286053739 13.93 fps
22 4145.13 kbps 0.9987459102606808 98.10614293682029 15.88 fps
26 2728.3 kbps 0.9975792826514985 97.1602920691641 17.53 fps

ref 4

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --allow-non-conformance --ref 4 -o "{o}" -
14 11432.93 kbps 0.9996313705448616 98.79407737594552 10.94 fps
18 6566.47 kbps 0.9993227858321845 98.55635387645603 13.08 fps
22 4140.64 kbps 0.9987467996677191 98.10413561907617 14.75 fps
26 2720.22 kbps 0.9975837847020722 97.16102693935036 16.43 fps

ref 5

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --allow-non-conformance --ref 5 -o "{o}" -
14 11423.1 kbps 0.9996316919595107 98.79517953991497 9.94 fps
18 6554.34 kbps 0.9993229848646462 98.55733606846796 11.8 fps
22 4135.84 kbps 0.9987477489996229 98.10691932048961 13.27 fps
26 2716.45 kbps 0.9975842508592093 97.16542674478197 14.74 fps

ref 6

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --allow-non-conformance --ref 6 -o "{o}" -
14 11394.61 kbps 0.9996318617835246 98.79486184779901 9.16 fps
18 6543.6 kbps 0.9993233431002588 98.55628805960636 10.5 fps
22 4125.96 kbps 0.9987477417901315 98.10790814736691 11.91 fps
26 2707.51 kbps 0.9975854004430597 97.16504553985794 13.3 fps

ref 8

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --allow-non-conformance --ref 8 -o "{o}" -
14 11374.21 kbps 0.9996319908789963 98.7950841865398 7.83 fps
18 6521.76 kbps 0.9993235655485279 98.55777289743193 9.15 fps
22 4116.22 kbps 0.9987481272255131 98.1072954524296 10.29 fps
26 2703.84 kbps 0.9975854105902029 97.16591587438033 11.37 fps

ref 12

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --allow-non-conformance --ref 12 -o "{o}" -
14 11362.37 kbps 0.9996321675925751 98.79562098785213 6.32 fps
18 6528.3 kbps 0.999323662030478 98.55586034407813 7.27 fps
22 4117.87 kbps 0.9987485758874046 98.11005004518147 8.04 fps
26 2702.11 kbps 0.9975862683873039 97.16404418400595 8.87 fps

ref 16

q bitrate ssim vmaf speed x265 --y4m -D10 --asm avx512 -pslowxx --crf {q} --allow-non-conformance --ref 16 -o "{o}" -
14 11359.1 kbps 0.9996322152052726 98.79503513438853 5.53 fps
18 6522.64 kbps 0.9993237622923618 98.55623625883824 6.35 fps
22 4117.18 kbps 0.9987483502949759 98.11001302596033 7.02 fps
26 2700.09 kbps 0.9975870547869924 97.16490961644097 7.74 fps